A mounting a heat sink (60) in a mounting frame (80) includes two clips
(20) and an operating body (40). Each clip has a central portion (22) and
two arms (24) depending from opposite ends of the central portion
respectively. Two hooks (28) extend inwardly from a distal end of each
arm. The operating body includes a main beam (42), two pressing tabs (44)
formed from upper edges of opposite ends of the main beam respectively,
and two ears (48) extending coplanarly outwardly from bottom portions of
the opposite ends of the main beam respectively. When the pressing tabs
are depressed, they drive adjacent arms of the clips to move downwardly
until the hooks of said adjacent arms are snappingly engaged in
corresponding retaining holes of the mounting frame. Thus the clips press
the heat sink to firmly contact an electronic package within the mounting
frame.
